1.小明将体积相同的铁球和铜球分别放入已调平的天平两托盘上(没有超过天平的量程,且ρ铁
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![1.小明将体积相同的铁球和铜球分别放入已调平的天平两托盘上(没有超过天平的量程,且ρ铁](/uploads/image/z/2588130-18-0.jpg?t=1.%E5%B0%8F%E6%98%8E%E5%B0%86%E4%BD%93%E7%A7%AF%E7%9B%B8%E5%90%8C%E7%9A%84%E9%93%81%E7%90%83%E5%92%8C%E9%93%9C%E7%90%83%E5%88%86%E5%88%AB%E6%94%BE%E5%85%A5%E5%B7%B2%E8%B0%83%E5%B9%B3%E7%9A%84%E5%A4%A9%E5%B9%B3%E4%B8%A4%E6%89%98%E7%9B%98%E4%B8%8A%EF%BC%88%E6%B2%A1%E6%9C%89%E8%B6%85%E8%BF%87%E5%A4%A9%E5%B9%B3%E7%9A%84%E9%87%8F%E7%A8%8B%EF%BC%8C%E4%B8%94%CF%81%E9%93%81)
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